mojo: first take on removing mojo_main_{chromium,standalone}.

mojo/examples/apptest/example_apptest.cc

Index: mojo/examples/apptest/example_apptest.cc
diff --git a/mojo/examples/apptest/example_apptest.cc b/mojo/examples/apptest/example_apptest.cc
index 2324b14417b8ad31a9a2314903952cca4087c9ec..6990ebdc13c1945e2dbaaa9521eb46a9d1c63bcb 100644
--- a/mojo/examples/apptest/example_apptest.cc
+++ b/mojo/examples/apptest/example_apptest.cc
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include "mojo/examples/apptest/example_client_application.h"
 #include "mojo/examples/apptest/example_client_impl.h"
 #include "mojo/examples/apptest/example_service.mojom.h"
 #include "mojo/public/cpp/application/application_delegate.h"
@@ -9,6 +10,7 @@
 #include "mojo/public/cpp/bindings/callback.h"
 #include "mojo/public/cpp/environment/environment.h"
 #include "mojo/public/cpp/system/macros.h"
+#include "mojo/public/cpp/system/main.h"
 #include "mojo/public/cpp/utility/run_loop.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ -71,14 +73,14 @@ TEST_F(ExampleServiceTest, RunCallback) {
 
 }  // namespace mojo
 
-extern "C" APPLICATION_EXPORT MojoResult CDECL MojoMain(
-    MojoHandle shell_handle) {
+MojoResult MojoMain(MojoHandle shell_handle) {
   mojo::Environment env;
   mojo::RunLoop loop;
 
-  mojo::ApplicationDelegate* delegate = mojo::ApplicationDelegate::Create();
-  mojo::ApplicationImpl app(delegate);
-  app.BindShell(shell_handle);
+  // TODO(tim): Perhaps the delegate should be the thing that provides
+  // the ExampleServiceTest with the ApplicationImpl somehow.
+  mojo::ApplicationDelegate* delegate = new mojo::ExampleClientApplication();
+  mojo::ApplicationImpl app(delegate, shell_handle);
   g_application_impl_hack = &app;
 
   // TODO(msw): Get actual commandline arguments.